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Published in:
2019 | OriginalPaper | Chapter
1. Introduction
Author : Saleh Faruque
Published in: Radio Frequency Multiple Access Techniques Made Easy
Publisher: Springer International Publishing
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Abstract
Multiple access techniques enable many users to share the same spectrum in the frequency domain, time domain, code domain, or phase domain. It begins with a frequency band, allocated by FCC (Federal Communication Commission). FCC provides licenses to operate wireless communication systems over given bands of frequencies. These bands of frequencies are finite and have to be further divided into smaller bands (Channels) and reused to provide services to other users. This is governed by the International Telecommunication Union (ITU). ITU generates standards such as FDMA, TDMA, CDMA, OFDMA, etc. for wireless communications. These standards along with numerous illustrations are presented to bring the students up-to-date in key concepts, underlying principles, and practical applications of multiple access techniques so that they can readily put them into work in the cellular industry.